I want the graph

Answer 1

[Image Analyst]

It looks like homework, so read this:

How do I get help on homework questions on MATLAB Answers? - MATLAB Answers - MATLAB Central

But the question didn't actually ask you to plot it, so I can do that part for you:

% Demo by Image Analyst
clc;    % Clear the command window.
close all;  % Close all figures (except those of imtool.)
clear;  % Erase all existing variables. Or clearvars if you want.
workspace;  % Make sure the workspace panel is showing.
format long g;
format compact;
fontSize = 25;
fprintf('Beginning to run %s.m ...\n', mfilename)

x = linspace(0, 12, 1000);
f = 8 * sin(x) .* exp(-x) - 1;
plot(x, f, 'b-', 'LineWidth', 3);
grid on;
title('8 * sin(x) .* exp(-x) - 1 vs. x', 'FontSize', fontSize);
xlabel('x', 'FontSize', fontSize);
ylabel('f', 'FontSize', fontSize);
ax = gca;
ax.XAxisLocation = 'origin';
ax.YAxisLocation = 'origin';
g = gcf;
g.WindowState = 'maximized'
fprintf('Done running %s.m.\n', mfilename)

If you need help with your Newton Raphson code, please post that. We're not just going to hand it over to you since it's your homework.